Hi all.
Have a problem with my opensuse server. I’m trying to manage it remotely through VNC. The problem is that, when I log into the system, the session is directly closed and the system keeps displaying login error attempts as if someone was typing false credentials. And I’m no more able to log into the system. Do you know a way to stop this behavior and prevent it from happening again. (Actually, it looks like a dictionnary attact and I’m just wondering how it happenned. I also know that using VNC only in not secure so I’m also looking a way to access securely the server through VNC). Your help will be highly appreciated, so waiting to read from you very soon…
On Tue, 14 Oct 2014 17:16:01 +0000, wdeudjui wrote:
> Have a problem with my opensuse server. I’m trying to manage it remotely
> through VNC. The problem is that, when I log into the system, the
> session is directly closed and the system keeps displaying login error
> attempts as if someone was typing false credentials. And I’m no more
> able to log into the system. Do you know a way to stop this behavior and
> prevent it from happening again. (Actually, it looks like a dictionnary
> attact and I’m just wondering how it happenned. I also know that using
> VNC only in not secure so I’m also looking a way to access securely the
> server through VNC). Your help will be highly appreciated, so waiting to
> read from you very soon…
Sounds like someone’s trying to break into the server - I would only run
a VNC server that was accessible from the Internet on the loopback
interface, and then ssh into the box and forward the local ports.
Something like:
ssh -L 5910:localhost:5900 -L 5810:localhost:5800
user@remotehost.domain.com
Then use the VNC client to connect to “localhost:10”
That would secure the connection by encrypting it, and you’d have to
authenticate via SSH (for added security, use rsa public key
authentication only with SSH so nobody’s trying to brute-force your ssh
password).
Jim
–
Jim Henderson
openSUSE Forums Administrator
Forum Use Terms & Conditions at http://tinyurl.com/openSUSE-T-C
Ok, thank you Jim. I’ve search also on google and the same solution was proposed. Till now I’ve been able to run ssh server on my Opensuse server and connect to it through ssh (accessing with putty). I’ve tried to configure port forwarding with putty but still have the same behavior. Seems to me that I’m not configuring putty the right way.
Will try and let you know if I was able to make it…
Thank you and see you…
Wilfried